Proportional meter.



PATENTED MAY 19, 1908.

E. E. CLARK. PROPORTIO-NAL METER.

APPLIOATIGN FILED AUG. 31,1904. I

3 SHEETS SHEET 1 No. 887,772. PAWTENTED MAY 19, 1908 E. E. CLARK.

PROPOR'I'IOIJAL METER:

APPLICATIQN IILED'AUG. 31,1904. 7

3 SHEETS-SHEET 2 PATENTED MAY 19, 1908.

EJE. CLARK; PROPORTIONAL METER." APRLIOATION FILED AUG. 31,1904.

3 SHEBTS-SHEET both small uuil large lows within 0, reasonchusctts; havciuvcnt'ccl an lmprovciuciit n in 1 min e21 i n ii. iii ll. i140 rim...Auk

EZRA E. l ERR, (ll SPRINGl lliLD, MASiACHUSEITS, liSSIGNUR TO CHARLES H.PHKNNEY,

HILL, MASSACHUSETTS.

PEQPGRTIONAL IFKETEIEL.

Application file-r1 August 31,

To all whom "it may concern:

it known that E, E2 @A E. CL zen of the United States, rcsii'iin field,county of iiamprlen, Sign: of i Proportional Mctcrs, of which thefollowing ilescriition in connection villi: the accom- 7 Y panyingdrawing, is a spe :i'hcumon, lilic let-- i tcrs on thc drawingsreprcccniing like parts. i The ob cct of this invention 18 ,0 provide a,I water meter that Will i'ncasurc zLIKi record able ilcgrcc of accuracy,and. W'LUQOUIG interposing in the pipe linc any obstructive mach;uuisi'u, and without causing any loss of friction such as in ciihcr casewould Wczikcri a water service for i'ii'c lighting puz'po "K2 in a iircservice it, is esscniizii than, when the full [low is turucd on in caseof lire the pressure shall be the null" l mum ohtuiniihua, and hcncc itis not onlydcciriihlc hutcsscutiul that all loss by friction in p isiugturough Lhc pipc shall be climh iicii so for us possihic, and asziccrollcry it no device shall ho placed in the pipe which shallinici'l'crc with the How of the water, or shall be of such mu ture as isliable to hcconic clogged so as to iniicl'l'crc with the lion. ihcrealization o1" thcsc rcquirmuoius of u iirc iigghiing scrvicc has ledto Lhc ilcvirsing of u ocrcrllcd proportional motor. in this fox-moimotor a small portion of thc flow in tho main pipc is shunted oil'through 11. bypass/hurl ihc lllOiAl' is located in tho ow-pus l5measuring tho ziuiouni oi \mlcr pusflng through tho ivy-puss and byusi-crzuiuing the proportion which exists hciwccn lh llUlllli, oiu'ziici through this hy-gmss and tho amount .i through tho main, ihcooiirc how i main is known. This lllPllHlil cliininzuos ull ohstructizmto the low of wuicr lhroufih thc main.

"hilc u proporiiouul uuilor will uuusuro hirgc flows within ccrliziinlimits lLlZ'ULll'iLlil), iLis found that tho proporiioi which mistshciwcon tho llow through tho was; and thc How through lzhc main vlS Mthe oxli'flllOS, and flllLlIOl'lDUlU, it is oiiou-xh hlc to usccompurzilivcly srnzill quuuli WZLlIOI, druwi 0, it from the some muiu1.; is used for iirc lighting purposes. Thc porlimuil nicicr zuluptcdfor mcusuring: hi lows is l'ouuil utterly iniulcquuic to niczisuic 1. inh u pl'opol'l iomill s' suuill llovns, uozl it is even poss- 1 sihlc tol :w; (JOIlSlLlSI'ilJlG quantities-L of Water Serial. 323a. 222,792.

moasurc :iccuraiclv for both. siiuill zuul large i'lowc, and this issecured in the present invcntiou' by nialc'ui j use of a meter whichshall inccsurc accurately up to c prcdcLcriniiu-ul amount suliicient forall small hows forcxuinpic, up to one liumlrcdgalloiu" :1 minute, and bycausing all suchsiuai, .ilows Lo puss dircctly through the hy-puss in-which this meter is locutcd. Whcuii lurgcr How is ilrmvn the 'n'iuinchipper valve opens, cud. the, same meter ihcii ucbs as u pi'opin'iiouolmeter, iucusuriiiga fractionor propo ion of the llow, and niorisu riugit accurately bGQllllbQ the fractional ui'nount will still be within thelimitsof ihc'lnctcr. This in general is the scopc and nulurc of ihciuvcution. it will bc inorc full; described in ihc uccon'ipuuyingspecificuiiou uuil ilruwiugs, and. will he more pup Licuhirly pointcdout in the appended-claims.

'lhc drawings rcprcucnt the meter of 'this invc uion in prcl'crrcil'l'orin, but it is oi.)- vious lhui Lhc invci'ition is not limited tothe construction uhowu thorciu, and that many vhzingcs in :uruugcmcut,construction and cvou prim-lulu oi opcrziiiou .uuiyhc made without,ilcpurtiug from the characteristic loot/ores of tho invention.

Figurc I rcprcscnts u t plan View of the preform! form of tho'inx'cntion, comprising Mil tho pins that arc uoi-ossury to hclocatcd iuthe main us an scction thcrcoi; Fig. 2 reprcscnts u ccntrul, vcriicul,longitudinal crosssccfion of tho motor shown: in Fig. 1; Fig. 3 is uncurl ch-vu'tiou portly in cross-scction, when on tho liuc :c m, of Fig.2, and slur-iving rcrtuiu voli'cs hereinafter dCSCllbCil;

Fig. i is u. iiciuil rich: oi thc iruiin chipper vulvo.

'lho nicicr us shown is for convenience of UIIHiIfHCLlMI uuidv of uuuiu'ocr of separate wusliugs lHJlilll toccthcr in the usual inunnoi."lho gvnvrul couutruciion and arrangeiucm oi' tlmw misliugs is apparentfrom the .li'zLWlHllIS, unrl nvmhi no further ilcscription.

The rumor Eli its lowcr portion contains u sociioo ol' Elm wm'vcr main,and adapted to holicd into the main iii A and B as a sec- ?iml Lhcrcol'.'ihc pus age of the main llow mu lurucil on is iiulicatcrl by the arrowsl,

i. Ql llfi suction cf the meter is enlarged to form a cylindricalchamber a, and a cylindrical strainer 1) forms the inner walls of thischamber, and from the chamber the openings 0 lead into the meter. Thecylindrical strainer leaves the water main entirely unobstructed sinceit is open at both ends, but it protects the meter from any foreignmatter which might injure or prevent the operation of the meter.Furthermore, the large flow of water when it starts through the mainwashes clean the strainer and removes any foreign substances collectedthereon.

While the cylindrical strainer is preferable for the reasons noted, anyform of strainer which will not obstruct the main flow and will protectthe meter from foreign matter is ada ted for use in this invention.

The meter proper is shown as comprising two dials C, C", but itsmechanism may be of any well-known type provided that it is ada ted tomeasure accurately and with slig 1t friction loss small lllOWS of waterup to a predeteri'nined amount. Experience has shown that such metersmeasuring flows of water up to one hundred gallons per minute accuratelyand with slight friction loss are now on the market and readilyobtainable. Since such a meter forms no part of this invention it is notindicated herein.

The admission ports of the meter are shown at c, and are providedwith-valves c c of a construction which. while allowing the water topass up through the meter will prevent watcr from passing in the wrongdirection, and thus running the meter backward. A simple form of suchvalve, known as a pump valve, is herein shown.

The water after passing into the meter through the ports 0, c, operatesthe works in the usual manner, whereby the dial operat ing shaft 0 isrevolved to cause the dial U to register.- The water then passes onthrough the by-pass (j, through the valve 1) into the chamber E, and outthrough. the main, as in dicated. by the arrow 4.

Located in the main is a weighted clapper valve 1 so arranged not toopen until a predetermined flow has been reached. The amount of the flowupon which the clapper valve F is to open is determined by the upperlimit of accuracy of registration of the meter, or by the up aer limitof the amountspf the average small flows. As before stated one hundredgallons per minute has been taken as a fair amount.

With the clapper valve F closed and small flows being drawn through themain, the water enters at the arrow 1, passes through the by-pass C inwhich the meter is located, and by which it measured, and then outaround the clapper valve F, through the main. In this way all smallflows are mcasured accurately and with slight friction loss.

W hen the pressure exceeds 'the predetermined amount and the How hasreached a preuetermlned extent of say one hundred gallons per minute,the main cla per valve 11 opens and the flow is directed t rough themain as indicated by the arrows 1, 2, 3, 4.

The clapper valve F is pivoted at f so as to rest by gravity u on thevalve-seat f, and is weighted as at sufiiciently to remain so seateduntil the predetermined flow or pressure takes place. I

The weight is so arranged that its effect decreases as the valve clapperopens, so that the loss in friction decreases correspondingly. Thefriction loss in fact is dependent upon the moment of the weight, andsince when the valve clapper is wide open the weight approaches thevertical position above the pivot f, the moment becomes smaller.

To secure the accurate setting of the valve F upon its seat f regardlessof any slight inequalities in construction, the valve F is attached toits weighted support by a universal joint f. In addition the valve seatpro er f is composed of rubber'havinga thin annu ar interior elasticflange f. "This fiange insures the valve clapper remaining tight duringall small flows-through ,tlie by-pass, because owing to the slightdifference in pres- .sure between. the two sides of the cla per thisflange or lip will be kept presse up against the face of the clapperuntil the claper opens su'l'liciently to tear it loose entirely. Thusthe valve remains tight during all conditions previous to a positive anddefinite opening of the valve, and this feature is regarded as a noveland important feature of this invention, although of course notessential to the invention in its broad aspect.

When the main clapper valve F opens its action serves to clutch or throwinto gear the registering mechanism of the dial C of the meter, whichserves to register proportionally the llow through the main pipe.

The flow of water through the by-pass in which the meter is locatedwill, upon the opening of the main clapper valve F drop at once from themaximum flow through the by-pass down to a small fraction of the minimumllow through the main pipe, or in other words to a small fraction of themaximum flow through the by-pass because the maximum flow through theby-pass and the mini mum flow through the main pipe are presumed to beequal upon the opening of the main clapper valve F. Experience has alsoshown that while the main clapper valve F is opening from the positionat which the minimum flow begins to its wide open posi-.

tion, and the main flow is consequently increasing from its minimumamount to its maximum, or while any variation is taking place in themain flow the, flow through the by-pass is not strictly proportional tothe I varying main flow. In view of these facts it becomes necessary tovary the size of the exit opening of the by-pass as the, main clap onthe dial the followin construction has i been designed.

An additional opening G is provided as on exit from the hy-pass C, and econoidal valve 35 gis provided for this opening. This conoidel vslve isarronged to operate simultaneously with the main clapper valve i and asa preferehle means of securing this end it is shown attached to thesupport of the clapper valve F and with its was formed on the arc of acircle having its center at the pivotfot the main valve clapper. Whenthe mom valve clapper F is closed the conoidal velve g closes the portG. This conoidal valve 9 is so shaped as determined by experiment andcalculation that the lio'w through the. main pipe when the valve clapperF is 0 )en will he pro )ortional to the flow through the hy-pass (I w enthe port G is correspondingly opened. When the main valve chipper i isopened and simultaneously the vnlveg opens the port G to secure theproportional how, it is of course necessary simultaneously to close Ithe port D. This port is shown annular 3g end-designed to pass aconsiderable llOW of vveter when its valve is but slightly open. Thevalve (1. is-shovvn as pivoted at (.l on the frame and provided withprojecting arms d en aging a pin gprojecting from the conoidnl 5 vs. veg. When the main valve clapper F is closed the pin g acting through thelever arrnd serves to hold the valve (1 open againstthe pressure of thewater, but when the main valve clapper F is opened at the same time theport t) is opened simultaneously and the valve (1 is closed, and thewater is thus shunted in the hy-pass from the port I) through the portG.

The construction of the valve (Z with the 5 projecting arms 12* betweenwhich the conoidal valve passes in its opening movement rendersimpossible any blocking of the open ing of the main valve l due toclogging of the valve opening D. Hence, even it on se- 5 cumulationshould prevent the closing of valved the main check valve would stillopen freely, and in case of fire it is the one essential thing that themain valve open. promptly under all conditions. 7

As already stated the dial C of the meter must he throwihinto operationsimultaneously with the opening of the main valve cla 'ipo'r. This issecured in the construction illustrated by a simple .form of clutch moperated by a bell-crank lever m connected hv it link in with the valve(1.

The limit of the opcnin of the main clnpper \nlve mu he dctcrmim-wl hystopsfij, one locutcd on the valve (-luppcr support-end 35 thc other oi.the triumi E l l l i l iii";

The operation of the meter when measuring' proportionilly with the dialC is apparent from the foregoing description. When the predeterminedpressure, as for example one hundred gallons per minute, is rciiclwd, inthe main pipe, the chipper l is thrown. open, the port 1) is at onceclosed, the port G opened, and the lion through the hy-psss shunted fromthe port D to the port ()1. it

the some time the dial U is thrown into operetion by the clutch M, andduring the continued opening of the valve chipper F the proportionbetween the lloiv'in the hy-pass and the flow in the mein is maintainedby the conoidal valve 9.

When the opening of the main valve takes place the meter is alreadyrunning registering on the dial (1 the How through the bypass,

- and consequently the meter does not have to be cleaned out andstarted, but i'nerely drops to a slower movement owing to the fall of We"er flowing through the hy-pass, end the dial C being thrown into gearthe registration begins on dial C and continues on dial C.

To ascertain the amount of water passing through the meter it is onlnecessary to take readings of the two dials f, and C and add themtogether, for the dial C indicates thev amount of Water ctiuilly passingthrough the hy-pess, and the dial C (when properly multiplied by thecoclhcient indicating the, proportion of the .tlovv through the-bypassto the flow in the main pipe) indicates the amount of Water passingthrough the main pipe. Thus not onl will the total uentity that ispassed be registered but it will also he possible to determine in n.ninnner the rate of the draft upon the supply. it dial t" showsconsiderable change since the last reading it will be evident that onlysmall flows have been USQ'thfIOHl time to time, but it dial C showsconsiderable orange it will be evident that flows of something over thepredetermined amount herein referred to as one hundred gallons perminute have been drawn, and this information often is of considerableimportance.

llaving described my invention, what I claim-es new and desire to secureo Letters Patent, is

l A. water meter comprising a. vveter main, 2. cheek-valve therein,means to prevent the opening of said. check-valve prior to apredetermined flow in the main, a by-pass around the said check-valveprovided with two exit ports, a measuring device located in said hypassand providedvvith tvvo rcgistving means, said measuring device causingthe operation of the first registering means to registcr the waterpassing through the hy-pnss, means acting simultaneously with the opening of the check-valve to close the E st exit port. open the second exitport and camnect the second registering: nicsus'end the incesun ingdcvic 2. A. water meter comprising a water main, a check-valve therein,means to prevent the opening of said check-valve prior to apredetermined flow in the main, a hy-pass around i the said check-valveprovided with two exit ports, a measuring device located in said bypassand provided with two registering means, said measuring device causingthe operation of the first registering means to register the waterpassing through the bypass, means acting simultimeously with the opening of the check-valve to close the first exit pott open the second exitport and connect the second re istrwing means and the measuring device,means to secure a substantially constant proportional [low through thesec ond exit port and the main.

A Water meter comprising a water main, a check-valve therein, means toprevent the opening of said check-valve prior to a predetermined flow inthe main, a l y-pass around the said oheclovalve provided with two exitports, a measuring device located in said bypass and provided with tworegistering means, said measuring device causing the operation of thefirst registering means to regi:'- ter the water passing through thebff-pass means actuated during the time the (llflt'livalve is open tomaintain the first exit port closed, the second exit port open, the meni uring device and the second registering means connected, and asubstantially constant proportional fiowthrough the second exit port andthe main.

4; A water meter comprising a Water main, a check-valve thereip, meansto prevent the opening of said cheek-valve prior to a predetermined flowin the main, a hypass around the said check-valve provided with two exitports, a measuring device located in said hy-passand provided with tworegistering means, said measuring device causing the operation of thefirst registering means to register the water passing through the byass, means connected with, and operated y the opening movement of, the creek-valve to close the first exit port, open the/second exitport, andconnect the second registering means and the measuring devicesimultaneously with the opening of the check-valve.

5. A water meter comprising a water main, a cheek-valve therein, meansto prevent the opening of'said check-valve prior to a predetermined flowin the main, a hypass around the said check-valve provided with two exitports, a measuringdevicc lo cated in said by-Pass and provided with tworegistering means, said measuring device causing the operation of thefirst'registering means to register the water passing through theby-pass, means connected with, and o erated by the opening movement of,the c eck-valve and acting simultaneously therewith to close the firstexit port,- open the [second exit port, and, connect the secondregistering means and the measuring device, means to secure asubstantially constant proportional flow through the second exit portand the main.

6. A water meter comprising a Water main, a check-valve therein, meansto prevent the opening of said check-valve prior to a predetermined fiowin the main, st by-pass around the said check-valve provided with twoexit ports, a measuring device located.

1 in said h y-pass and provided With two registering means, saidmeasuring device causing the operation 'ofithe first registering meansto register the water passing through the day-pass, means connected withand corn trolled by the check-valve to maintain the first exit portclosed, the second exit port open, the measuring device and the secondregistering means connected, and a suh-- stantially constantproportional flow thro the second exit port and the main while thecheck-valve is open.

7. A Water meter comprising a water main, a check-valve therein, meansto prevent the opening of said checi'ovalve prior to a pro-- determinedflow in the main, a hy-pass around the said checlevalve provided withtwo exit ports, a measurin device located in said hy-pass and providedwith two registering means, said measuring device causing the operationof the first registering means to register the water passing through thehy pass, a conoidal valve for the second exit port constructed to securea substantially constant proportional flow through the second exit portand the main, means acting simultaneously with the opening of the checkvalve to close the first exit port, open the conoidal valve in thesecond exit port, and connect the second registering means and themeasuring device.

8. A Water meter comprising a waterrnain, a check-valve therein, meansto prevent the opening of said check-valve prior to a predetermined flowin the main, a hy-pass aroundthe said check-valve provided with two exitports, a measuring device located in said by-pass and provided with twore istering means, said measuring device causing the operation of thefirst registering means to register the Water passin through the hypass,a conoidal valve for t 1e second exit port constructed to secure asubstantially constant proportional flow through the second exit portand the main, means comiected with and operated by the opening movementof the checlr-valve and acting simultaneously therewith to close thefirst exit port, open the conoidal valve; in the second exit port, andconnect the second registering means and the measuring device.

9. A watermeter comprising a Water main, a check-valve therein, a weightconnected 1 with the said check-valve and acting to prevent the openingof said check-valve prior to a predetermined ilow in the main, a hypassaround the said cheek-valveprovided withtwo exit ports, a measuringdevice ioeated in saidl'iy-pass and provided with two registering means,said measuring device causing the operation of the 'lirst registeringmeans to register the water passing through the lay-pass, meansactingsiinultancinisly with the opening of the check-valve to close thefirst exit port, open the second exit port,'

and connect the second registering means and the measuring device.

10. A water meter comprising a water main, a check-valve therein, a vveight connected with the said check-valve and actinp to prevent theopening of said check-valve )rior to a predetermined ilow in the main, ay-pass around the said check-valve provided with two exit ports, ameasuring device located in said b v-pass and provided with tworegistering 11 )ans, said measuring device causing the operation oftheJiirst registering means to register the water passing through the b,'-pass, a con idal valve for thc second exit port constructed to securea sub stantially constant proportional low througl'i the second exitport and the main, means acting simultaneousl with the opening of the ctsch-valve to close the-first exit port, open the conoidal valve in thesecond exit port, and connect the second registering means and themeasuring device.

11. it water mctcr comprising a water main, a check-valve therein, aweight connected with the said check-valve and acting to prevent theopening of said checlovalvc prior to a predetermined ilow in the main,1))"PHSS around the said chcch-valve provided with two exit ports, ameasuring device located in; said hv-pass and provided with tworegistering means, said n'ieasuringg device causing the operation oi thefirst registering means to rcgristcr the water passing through theinf-pass, a conoidal valve for the second exit port onstructcd to securea sul stantiall v constant proportional flow through the secondcxit portand the main, means connected with and operated h v the opening movementoi the chcck-valve and acting simuitaneouslv therewith to close thefirst exit port, open. the conoidal valve in the second exit port andconnect the second registerinc means and the measuring device.

12. A water meter comprising a water main, a check-valve therein, meansto prevent the opening of said check-valve prior to a predetermined flowin the main, a bypass around the said check-valve provided with two exitports, a measuring device located in said h v-pass and provided with tworegisteo' ing means, said measuring device-causing: the

opening ol' the check-valve to close the first ncct the secondrcgistcring means and the mcasul'ing' dcvicc, moans to prcvont anyhaclvward ilow trom thc h v-pass to' the main.

I i. A water mcter comprising a water main. :1 chock-valve then in.means to prevent the opening ol' said ch clc-valve prior to aprwlctcrmincd flow in the main, a hi -pass around the s id check-valveprovided with two cxit ports. measuring devicc located in said h v-passand provided with two registering means, said nieasu' ng dcvico causingthe operation oi the 'hrst gistering means to register the water pa..through the hypass, means connected with, and operated by the openingmovement of, the check-valve and acting simultaneously therewith toclose the iirst exit port. op n the second exit port, and connect thesecond egistering mcam and the measuring dc icc i any hacliward i'lowfroin main. 1

1.4. A water meter comprising a water main, a checlvvalve therein, a wiight connected with the said check-valveand acting to prevent theopening of said check-valve )rio! to a predetermined iiow in the main, av-pass around the said check-valve providod with. two exit ports, ameasuring devicc located in said hy-pass' and provided with tworegistering means, said measuring device causing the operation of thefirst rogistering means torcgister the water passing through the hv-pass, a conoidal valve for the second cxit' port constructed to securea subst antiallv constant proportional flow through the second exit portand the main, means connected with, and operator. hy the openingmovement oi, the check-valve and acting siport, open the conoidal valvein the second exit port and ccmnect the second registering means and themeasuring device, means to prevent any hacliward flow from the by-passto the main.

' A water meter comprising a water main, a check valve thcrcin, apivoted support for said chcch valvc. a weight conncctcd with saidpivoted support and arranged so that when the valve opens the momcnt otthe weight dccrcases, a l .'i', tlSH around the said check valveprovidcd with two exit ports, the first of which is ring-shaped andprovided with a rinig-sha )cd valvc, and the second of which is provircd with a conoidal valve, a measuring dcvicc locatcd in said hv-pass andprovidcd with two dials, means tor causing the operation oi the iirstdial to register the water passing.throuch the hv-pass, means connectedwith and operated hv the check valve to close the ring-shaped valve ofthe i first exit port and opcn the second exit port 'tlu'ougrh thec-onoidai valve.simultaneously with the; opening of the check valve,means cxil port opcu the second exit port and conmultaneouslv therewithto close the first exit I for simultaneouslyconnecting the second dialwith the means for'causing the operation of the first dial. I I

16. A water meter comprising a water a main, a check' valve therein, aivoted support for said checkvalve, a wei Y t connected with saidpivoted support am arranged so that when the valve opens the moment ofthe weight decreases, a-by-pass-around the said 10 check valve providedwith two exit ports, the first otwhich is r'in -shaped andprovided witha ring-'sha ed va ve, and the second of which is provi ed with. aconoidal valve, a measuring device located in said bypass and providedwith two dials, means for causing the operation of the first dial toregister the water passing through the by-pass, means 8 connected withand operated by the check valve to close the ring-shaped valve of thefirst exit port and open the second exit port through the conoidal valvesimultaneously with the opening of the check valve, means forsimultaneously connecting the second dial with the means for causing theoperation of the first dial, means to prevent anybackward flow from'theby-pass to the mam.

' 17. A water meter comprising a main, a check valve therein, a by-passaround the said check valve, means for measuring directly small flowsthrough the by-pass, means for measuring proportionally by the flowthrough the by-pass large flows through the open check valve.

18.A watermeter comprising a main, a check valve therein, a by-pass,around the said check valve, means for measuring directly small flowsthrough the by ass, means for measuring proportionally .arge flows throuh the open.check valve b the flow through the by-pass, a conoidal va vein the by-pass for maintaining the desired proportion between the flowsthrough the bypass and the main.' a 19. A water meter comprising a main,a check valve therein, a bypass around the said check valve, means formeasuringdirectly small flows through the byass, means for measuringproportionally arge flows through the open cneclr valve by the H wthrough the by-pass, a conoidal valve in the by-pass for maintaining thedesired roportion between the flows through the y-pass and the main,means for causing the simultaneous actuation of the check and conoidale5 valvcs.-

20. A' "water meter comprising a main, a check valve therein, a by-passaround the said check valve, means for measuring div rectly small flowsthrough the by-pass and for measuring proportionally large flows throughthe open check valve by the flow through the by-pass, a conoidal valvein the by-pass for maintaining the desired roportion between the flowsthrough the y-pass and the main, means for causing the simultion of thesaid valves whereby a desire taneous actuation of the check andconoidal" valves during the opening movement of the check valve.

21'. A water meter comprising a main, a check valve therein, a by-passaround the said check valve, means for measuring directly small flowsthrough the by-pass and for measuring pro ortionally large flows throughthe open 0 leek valve by the flow through the by-pass, a conoidal valvein the by-pass for maintaining the desired roportion between the flowsthrough the y-pass and the main, means for causing the simultaneousactuation of the check and conoidal valves during the closing movementof the 30 check valve.

22. A. Water meter comprising a main, a check valve therein, a by-passaround the said check valve, a conoidal valve in said bypass formaintaining a desired proportion g5 etween the flows through the mainand the by-pass when the check valve is open, means for measuringdirectly small flows through the byass when the check valve is closed,

means or measuring proportionally by the flow throu h the by-pass largeflows through the open 0 eck valve.

i 23. A water meter comprising a main, a check valve therein, a by-passaround the said check valve, an axially curved, pivoted conoid-al valvefor said by-pass, connections between said check valve and conoidalvalve whereby a desired roportion is maintained between the flows tough'the main and the by-pass whenthe check valve is open.

24. A water meter comprising a main, a check valve therein, a by-passaround the said check valve, an axially curved, pivoted conoidal valvefor said by-pas's, connections between said check valve and conoidalvalve to cause the simultaneous but reverse 0 eraroportion is maintainedbetween the ows through'the main and the by-pass when the check-valve isopen.

25. A water meter comprising a main, a check valve therein, a b -passaround the said check valve, an axis y curved, pivoted conoidal valvefor said by-pass, connections between said check valve and conoidalvalve whereby a desired roportion is maintained between the flows trough the main and the by-pass when the check valve is open, means formeasuring directly small flows through the by-pass, means for measuringpro ortionally by the flow through the lay-pass arge fiow through theopen check valve.

26. A water meter comprising a main, a check valve therein, a by-passaround the said check valve, an axially curved, pivoted conoidal valvefor-said by-pass, connections between said check valve and donoidalvalve whereby a desired roportion is maintained between theflows t roughthe main and the bypass when the check valve is open, a 130 -measuringdevice located in said "try-pass and provided with two registeringmeans, one of which operated by the ilow through the by-puss when thecheck-valve is closed and the other of which is operated by the ilowthrough the bypass only when thei-heclr valve is open 27. A water metercomprising a main, a. check valve therein, a by-pnss around the saidcheck valve, an axially curved, pivoted conoidal valve for said by-pass,connections between said check valve and conoidal valve whereby adesired proportion maintained between the flows through the main and theby-pnss when the check valve is open, a measuring device located in saidby-pass and provided with two registering means, one of which isoperated by the flow through the by-pass when the checlcvalve is closed,and the other of which is operated by the flow through the by-pass onlywhen the check valve is open, connections between said measuring deviceand said-check-valve for throwing the second registering means into andout of operation upon the opening and closing respectively of the checkvalve.

28. A water meter comprising a main, a check valve therein, means toprevent the opening of said check valve prior to a predetermined ilowthrough the main, a by-pass around the said check valve, a measuringdevice located in said by-pass and provided with two registering moans,means for causing the operation of the first registering means toregister 'the flow passing through the lay-pass, means acting when thecheck valve is open for causing the operation of the second registeringmeans to register the proportional flow passing through the main by theflow through the by-pass.

29. A water meter comprising a main, a check valve therein, means toprevent the opening of said check valve prior to a pre determined flowthrough the main, a by-pass around the said check valve, a measuringdevice located in said by-pass and provided,

with two registering means, means for causing the operation of the firstregistering means to register the flow passing through the by-pass,means acting whenthe check valve is open for causing the operation ofthe second registering means to register the pronortional flow passingthrough the main by the how through the by-pass, means to secure adesired proportion between the flows through the main and by-pass whenthe check-valve is open, comprising a eonoidal valve in the by-pass.

3U. A water meter comprising a main, a check valve therein, means toprevent the opening of said check valve prior to a predetermined ilowthrough the main, :1 by-pass around the said check valve, a measuringdevice located in said by-pass and provided with two registering means,means for causing the operation of the first registering means toregister the flow passing through the by-pass, means acting when thecheck valve is open for causing the operation of the second registeringmeans to'register the proportional low passing through the main by theflow through the bypass, means to secure a desired proportion betweenthe flows through the main and bypass when the check valve is open,comprising an axially curved pivoted conoidal valve in the by-passconnected to the check valve to move there with.

31. A water meter comprising a main, a check valve therein, a by-passaround said check valve, a measuring device, com rising two registeringmeans, means eontro ed by the check valve for controlling the operationof one of said registering means.

32. A water meter comprising a main, a check-valve therein, a byassaround said check valve, a measuring evice comprising two registeringmeans, connections between the check tlve and said measuring device forcontrolling the oeration of one of said registering means w en the checkvalve is open, I

33. A water meter comprising a main, a check valve therein, a byassaround said check valve, a measuring riievice comprising two registeringmeans, means for operating both of said registering means by the flowthrough the by-pass, connections between the check valve and one of saidregistering means, whereby the operation of one of said registeringmeans is permitted upon the opening of the check valve, and is preventedupon the closing of the check-valve.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses. I

- EZRA E. CLARK.

Witnesses:

NATHAN HEARD, MABEL PARTELOW.

